Are the uniforms at US schools reasonably practical, comfortable and do they have reasonable colour, e.g. not green ? As a girl of socialism, I experienced pioneer uniforms, which were not well designed. They forced short skirts on girls, which are impractical in some weather. The upper part, the shirt, needed to be ironed. There was no sweather or coat to unify kids in winter.. My mother once had to stand coatless in winter in a wellcome row for some event. I can also imagine some girls having aesthetic issues with the exposed legs or unflattering color. But what are the uniforms in the US usually like ?

Schools in the US are run locally and are very diverse. Some schools (mostly private ones) require uniforms, but as far as I know the majority of public schools do not. There are dress codes -- all schools have policies about what's acceptable to wear to school -- but within those guidelines you can generally wear what you want.